Performance by cohort
2 year bands · 6,923 tests
Pass rate climbs 1.1 points across the cohorts — newer Jazz SR I Mmd Cvt examples clear the test more reliably than the early cars.
Pass
92.0%
Fail
4.5%
PRS
3.1%
Avg mileage at test
21,053 mi
Pass
93.1%
Fail
4.0%
PRS
2.4%
Avg mileage at test
18,134 mi
Cohort = vehicle's first-registration year band. Same model, different generations of build.